When we look in everyday life, we often found
around the events that show the relationship between heat and changes in the
form of a substance. For example we take a piece of wire and then heated, then
wire it will expand in all directions length, width and height. Another example
of the person who installed the windows. That person how to install does not
fit (right) on the window frame, but was given little space or distance. This
space is to keep the glass does not shatter when it expands.
Heat can be measured with a thermometer named.
In addition there is a very simple way is as follows. Take three pieces of
panic. The first Panic filled with hot water. Panic both filled with warm
water. The third Panic filled with cold water. Insert right hand into hot
water, left hand into cold water a few minutes and then put both hands into the
warm water in the same pot hands feel different temperatures. The left hand was
hot and right hand feels cold. This means it can not tell the truth, when an
object was hot or cold in a way to feel him.
To measure the exact temperature required
instrument called thermometer. We can measure in degrees Celsius (C) and in
degrees Fahrenheit (F).
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